REPOSITIONING AND OTHER CHARGES 4 (Details) $ in Millions	3 Months Ended
	Mar. 31, 2020 USD ($) employee	Mar. 31, 2019 USD ($) employee
Net Repositioning And Other Charges [Line Items]
Restructuring and Related Cost, Incurred Cost	$ 70	$ 58
Net repositioning and other charges Paragraph Details [Abstract]
Gross Repositioning Charge	$ 83	$ 60
Number of employees severed | employee	2,124	1,047
Severance
Net Repositioning And Other Charges [Line Items]
Restructuring and Related Cost, Incurred Cost	$ 66	$ 31
Asset impairments
Net Repositioning And Other Charges [Line Items]
Restructuring and Related Cost, Incurred Cost	2	11
Exit costs
Net Repositioning And Other Charges [Line Items]
Restructuring and Related Cost, Incurred Cost	15	18
Reserve adjustments
Net Repositioning And Other Charges [Line Items]
Restructuring and Related Cost, Incurred Cost	$ (13)	$ (2)